Olam, Mikail2024-08-042024-08-0420240149-63951520-5754https://doi.org/10.1080/01496395.2024.2349177https://hdl.handle.net/11616/101981Co-carbonization of waste biomass is of great interest to reduce production costs and increase carbon yields. In this study, it was investigated to produce cost-effective and high carbon yield activated carbons by carbonizing lemna minor (LM) and hazelnut shell (HS) wastes together. In this context, LM and HS were co-carbonized at 800 degrees C, 100 mL/min of N-2 for 90 min, and their carbonization yields, adsorption capacities, physical and chemical properties were determined. X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV), energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), ultimate and proximate analysis were performed. According to XRD analysis, HS is amorphous, LM is semi-crystalline, but the crystalline structure increased after co-carbonization. Based on the FTIR analysis LM, HS, and cLM/HS contain various functional groups, including O-H, C-H, and C-O. The adsorption capacity and CV removal, obtained by co-carbonized LM and HS (cLM/HS), are 87.95 mg/g and 88%, respectively. Its specific surface area is 745 m(2)/g. This study showed that the cLM/HS is a cost-effective adsorbent for the removal of crystal violet dye. GRAPHICAL ABSTRACTeninfo:eu-repo/semantics/closedAccessLemna minorhazelnut shellcrystal violetcarbonadsorptionArticle59573774710.1080/01496395.2024.23491772-s2.0-85192528624Q2WOS:001216910500001N/A